Mercurial > hg > digilib

annotate webapp/src/main/webapp/jquery/svg/jquery.digilibSVG.js @ 1097:3a681e2fb732

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factor out defineArea, using overlay div
author hertzhaft
date Sat, 27 Oct 2012 00:06:29 +0200
parents ad2acb7c300e
children
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rev   line source
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1 /* Copyright (c) 2011 Martin Raspe, Robert Casties
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2
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3 This program is free software: you can redistribute it and/or modify
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4 it under the terms of the GNU Lesser General Public License as published by
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5 the Free Software Foundation, either version 2 of the License, or
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6 (at your option) any later version.
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7
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8 This program is distributed in the hope that it will be useful,
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9 but WITHOUT ANY WARRANTY; without even the implied warranty of
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10 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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11 GNU Lesser General Public License for more details.
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12
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13 You should have received a copy of the GNU Lesser General Public License
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14 along with this program. If not, see <http://www.gnu.org/licenses/>.
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15
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16 Authors:
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17 Martin Raspe, Robert Casties, 9.2.2011 - 26.3.2012
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18
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19 */
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20
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21 /**
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22 * digilib SVG plugin (measuring tool for use within the digilib jQuery plugin)
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23 **/
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24
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25 /* jslint browser: true, debug: true, forin: true
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26 */
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27
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28 (function($) {
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29
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30 // plugin object with digilib data
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31 var digilib = null;
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32 // the functions made available by digilib
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33 var fn = null;
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34 // affine geometry plugin
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35 var geom = null;
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36
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37 var defaults = {
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38 // choice of colors offered by toolbar
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39 lineColors : ['white', 'red', 'yellow', 'green', 'blue', 'black'],
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40 // default color
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41 lineColor : 'white',
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42 // color while the line is drawn
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43 drawColor : 'green',
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44 // color of selected objects
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45 selectColor : 'red',
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46 // drawing shapes
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47 shapes : ['line', 'polyline', 'rectangle', 'square', 'circle', 'arch',
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48 'ratio', 'intercolumn', 'line grid'],
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49 // default shape
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50 shape : 'line',
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51 // measuring unit (index into list)
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52 unit : 1,
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53 // converted unit (index into list)
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54 converted : 2,
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55 // last measured distance
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56 lastDistance : 0,
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57 // last measured angle
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58 lastAngle : 0,
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59 // maximal denominator for mixed fractions
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60 maxDenominator : 20,
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61 // number of decimal places for convert results
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62 maxDecimals : 3,
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63 // show convert result as mixed fraction?
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64 showMixedFraction : false,
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65 // show angle relative to last line?
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66 showRelativeAngle : false,
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67 // show distance numbers?
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68 showDistanceNumbers : true,
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69 // show ratio of rectangle sides?
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70 showRectangleRatios : false,
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71 // draw line ends as small crosses
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72 drawEndPoints : true,
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73 // draw mid points of lines
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74 drawMidPoints : false,
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75 // draw circle centers
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76 drawCenters : false,
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77 // draw rectangles from the diagonal and one point
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78 drawFromDiagonal : false,
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79 // draw circles from center
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80 drawFromCenter : false,
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81 // snap to endpoints
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82 snapEndPoints : false,
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83 // snap to mid points of lines
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84 snapMidPoints : false,
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85 // snap to circle centers
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86 snapCenters : false,
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87 // snap distance (in screen pixels)
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88 snapDistance : 5,
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89 // keep original object when moving/scaling/rotating
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90 keepOriginal : false,
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91 // number of copies when drawing grids
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92 gridCopies : 10
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93 };
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94
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95 var actions = {
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96 "test" : function(options) {
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97 var onLoadXML = function (xml) {
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98 settings.xml = xml;
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99 settings.$toolBar = setupToolBar(settings);
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100 $digilib.each(function() {
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101 var $elem = $(this);
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102 $elem.data(pluginName, settings);
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103 });
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104 };
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105 var onLoadScalerImg = function () {
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106 var $svgDiv = $('<div id="svg" />');
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107 $('body').append($svgDiv);
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108 // size SVG div like scaler img
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109 var $scalerImg = $digilib.find('img.pic');
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110 var scalerImgRect = geom.rectangle($scalerImg);
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111 scalerImgRect.adjustDiv($svgDiv);
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112 console.debug('$svgDiv', scalerImgRect);
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113 var $svg = $svgDiv.svg({
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114 'onLoad' : drawInitial
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115 });
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116 settings.$elem = $digilib;
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117 settings.$svgDiv = $svgDiv;
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118 settings.$svg = $svg;
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119 // set SVG data
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120 $svg.data('digilib', data);
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121 $svg.data(pluginName, settings);
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122 };
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123 // fetch the XML measuring unit list
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124 $.ajax({
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125 type : "GET",
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126 url : "svg/archimedes.xml",
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127 dataType : "xml",
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128 success : onLoadXML
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129 });
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130 data.$img.load(onLoadScalerImg);
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131 return this;
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132 }
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133 };
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134
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135 // setup a div for accessing the main SVG functionality
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136 var setupToolBar = function(settings) {
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137 var $toolBar = $('<div id="svg-toolbar"/>');
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138 // shapes select
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139 var $shape = $('<select id="svg-shapes"/>');
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140 for (var i = 0; i < settings.shapes.length; i++) {
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141 var name = settings.shapes[i];
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142 var $opt = $('<option value="' + i + '">' + name + '</option>');
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143 $shape.append($opt);
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144 }
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145 // console.debug($xml);
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146 var $xml = $(settings.xml);
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147 // unit selects
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148 var $unit1 = $('<select id="svg-convert1"/>');
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149 var $unit2 = $('<select id="svg-convert2"/>');
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150
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151 $xml.find("section").each(function() {
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152 var $section = $(this);
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153 var name = $section.attr("name");
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154 // append section name as option
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155 var $opt = $('<option class="section" disabled="disabled">' + name + '</option>');
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156 $unit1.append($opt);
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157 $unit2.append($opt.clone());
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158 $section.find("unit").each(function() {
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159 var $unit = $(this);
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160 var name = $unit.attr("name");
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161 var factor = $unit.attr("factor");
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162 var $opt = $('<option class="unit" value="' + factor + '">' + name + '</option>');
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163 $opt.data(pluginName, {
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164 'name' : name,
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165 'factor' : factor,
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166 'add' : $unit.attr("add"),
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167 'subunits' : $unit.attr("subunits")
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168 });
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169 $unit1.append($opt);
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170 $unit2.append($opt.clone());
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171 });
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172 });
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173 // settings.units = units;
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174 // other elements
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175 var $la1 = $('<span class="svg-label">pixel</span>');
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176 var $la2 = $('<span class="svg-label">factor</span>');
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177 var $la3 = $('<span class="svg-label">=</span>');
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178 var $la4 = $('<span class="svg-label">=</span>');
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179 var $px = $('<span id="svg-pixel" class="svg-number">0.0</span>');
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180 var $factor = $('<span id="svg-factor" class="svg-number">0.0</span>');
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181 var $result1 = $('<input id="svg-unit1" class="svg-input" value="0.0"/>');
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182 var $result2 = $('<input id="svg-unit2" class="svg-input" value="0.0"/>');
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183 var $angle = $('<span id="svg-angle" class="svg-number">0.0</span>');
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184 $('body').append($toolBar);
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185 $toolBar.append($shape);
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186 $toolBar.append($la1);
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187 $toolBar.append($px);
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188 $toolBar.append($la2);
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189 $toolBar.append($factor);
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190 $toolBar.append($la3);
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191 $toolBar.append($result1);
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192 $toolBar.append($unit1);
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193 $toolBar.append($la4);
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194 $toolBar.append($result2);
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195 $toolBar.append($unit2);
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196 $toolBar.append($angle);
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197 return $toolBar;
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198 };
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199
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200 var drawInitial = function ($svg) {
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201 console.debug('SVG is ready');
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202 var $svgDiv = $(this);
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203 var rect = geom.rectangle($svgDiv);
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204 $svg.line(0, 0, rect.width, rect.height,
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205 {stroke: 'white', strokeWidth: 2});
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206 $svg.line(0, rect.height, rect.width, 0,
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207 {stroke: 'red', strokeWidth: 2});
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208 };
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209
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210 // plugin installation called by digilib on plugin object.
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211 var install = function (plugin) {
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212 digilib = plugin;
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213 console.debug('installing digilibSVG plugin. digilib:', digilib);
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214 fn = digilib.fn;
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215 // import geometry classes
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216 geom = fn.geometry;
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217 // add defaults, actions, buttons
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218 $.extend(true, digilib.defaults, defaults); // make deep copy
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219 $.extend(digilib.actions, actions);
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220 // export functions
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221 // fn.test = test;
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222 };
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223
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224 // plugin initialization
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225 var init = function (data) {
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226 console.debug('initialising digilibSVG plugin. data:', data);
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227 var $data = $(data);
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228 $data.bind('setup', handleSetup);
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229 };
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230
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231 var handleSetup = function (evt) {
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232 console.debug("digilibSVG: handleSetup");
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233 var data = this;
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234 var settings = data.settings;
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235 };
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236
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237 // plugin object with name and init
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238 // shared objects filled by digilib on registration
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239 var plugin = {
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240 name : 'digilibSVG',
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241 install : install,
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242 init : init,
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243 buttons : {},
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244 actions : {},
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245 fn : {},
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246 plugins : {}
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247 };
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248
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249 if ($.fn.digilib == null) {
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250 $.error("jquery.digilibSVG must be loaded after jquery.digilib!");
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251 } else {
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252 $.fn.digilib('plugin', plugin);
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253 }
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254 })(jQuery);